Railway-signal.



PATENTEDJAN.21,1908.

F. B. COREY.

RAILWAY SIGNAL.

APPLICATION FILED 001e, 1905.

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n5se5- PATENTED JAN. 21, 1908.

, P. B. COREY.

RAILWAY SIGNAL. APPLICATION FILED OCT. 6. 1905.

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FRED B. COREY, or SCHENEGlADY, NEW YORK, assicnon TO GENERAL ELECTRICCOMPANY.

A oonronArion-or NEW YORK.

nmLwaY srGn-nn aphore casting exposed to the weather they frequentlybecome covered with snow and sleet, so that they are no longertranslucent. This is clearly asource of danger, as a slgnal may bepassed at night without being seen by the en ineer. Certain signals havebeen arranged ieretofore with the roundels and lamp all inclosed in acasing so as to be pro- Nith this arrangement it is necessary to providesome sort of connection between the sema hore signal and the roundels sothat they will be moved in accordance with the movements of the semahore arm.

a my invention T eobject of my invention is to provide lmple arrangementfor controlling the r ndels which may readily be applied to standardsignals, and in its broadest aspect consists in the combination with asemaphore signal, of a casing com prising a lens, a lamp inclosed in thecasing, one or more translucent disks movable between thelamp and thelens, and electroma netic controlling means for the disk control ed byswitch contacts operatively related to the semaphore arm.

My invention further consists in so arranging the disks or roundels andtheir operating mechanism that when the operating means is deenergizedor disabled the roundels will move to such a position that a dangersignal will be given.

My invention will best be understood by reference to the accompanyingdrawings, in which Figure 1 shows a side elevation of a signal arrangedin accordance with my invention with a portion of the casing inclosingthe operating mechanism partly broken away; Fig. 2 shows a front view ofthe same with the casing similarly broken away; and Fig.

3 shows a diagram of circuit connections.

. Specification of Letters Patent. Application fil ed Satchel-43.1905.Serial No. 281.669.

Patented Jan. 21, 1908.

In the drawings A represents a signal-post on which is mounted a casingB.

C represents the drive-shaft for the semaphore arm which is suitablyjournaled within the casing and driven by suitable operating mechanism.The operating mechanism for the semaphore arm is not shown, but may beof any well-known type, such, for instance as that shown in Patent No.778,037, Herman. i

' 1) represents the sema mounted on the drive-s hore arm which is aft Coutside the d,wh1ch is adapted to drive it to danger position whenreleased by the operating mechanism;

R, Y and G represent three electromagnets, the'circuits of which arecontrolled by the contacts a on the end of the signal driveshaft C,cont-acts e in circuit with the electromagnet.

ed through ivoted bell-crank levers h b and it to the pivotedtranslucent disks or roundels 13 g and 9. These roundels are ofdifferent colors as, for instance, red, yellow and green, as indicatedby the letters applied to them, so as to give three distinct colorind-ications of" caution, clear and dan er, corresponding to positionsof the semap ore arm, and are ivoted to move between the lamp L and theens Z which is inserted in the wall of the casing B. As the differentdisks move in front of the lamp different colored indications are given.Since the roundels are inclosed within the casing they are protectedfrom being obscured by snow and sleet. The outer surface of the lens Iis the only exposed surface which must transmit light, and since thelamp I) heats the casing, snow or sleet striking on the lens Z will bemelted and will run ofl. The signal is consequently much more reliablethan would be the case if the ing outside the casing exposed to theweather in the usual manner.

In order that a danger indication may be given at night, if the sourceof current for the electromagnets fails, or the circuits are broken, orthe magnets are in. any way disabled, I so arrange the disks that whenthey inove b gravity to predetermined positions in whic the red roundelis in line with the l la'mp, while the other two disks are out ofcasing,' and is provided with a counter-weight whi hengage suitablestationary,

are released by the electromagnets they The cores of t e:electromag'nets are connectroundels were mounted on. a spectacle cast-'Q eraser.

line with the lamp. One arrangement Iior accomplishing this result isthat shown in the drawings, in which the red disk is so arranged thatits'ran e of movement isfrom a ositi'on in front of t e lamp upwards,while t .e other two disks have a range of movement from. a position infront of the lamp-downwards, and all the disks are arranged to return totheir lowest position automatically by gravity when released.

The circuit connections may be arranged as shown in Fig. 3, which showsthree signals D, D and D in danger, caution and clear positionsrespectively. With the signal D at danger position, as shown, theContact 0 on the signal-shaft is out of enga ement with .the stationarycontacts a, so t at the.cir-.

- cuits of all the electromagnets are broken and the roundels areallowed to drop to their lowest positions. I roundel r is in line withthe lamp L and lens Z, while the other two roundels g and y are out ofline with the lamp so that a red 'or danger indication is given. Whenthe signal arm is in caution. POSllDlOIl,-"&S indicated at D acircuit isclosed from the source of current f through both magnets R and Y. The

roundels r and y are consequently raised to their highest positions.This brings the red disk out of line with. the lamp and the yellow diskg in line with the lamp, so that the yeltacts for the roundel magnets onthe signal drive-shaft, or on any other suitable part of the operatingmechanism.

I do not desireto, limit myself to the particular construction andarrangement of parts here shown, but aim in the a pended claims to coverall modifications'w ich are within the scope of my invention.

' What I claim as new and desire to secure by Letters Patent of theUnited States, is,. j 1-. Asemapliore signal com risinga casing havingalens, a lamp inclose 'in said casing a translucent disk movable betweensaid lamp and said lens, an cletromagnet within said casingcontrolling'said dish, a semaphorearm movable. outside but adjacent tosaid" casing, and switch contacts controlling said electromagnetandcontrolled. by the sema phore signal.

2. In combination with a semaphore signal and its 0 erating'meciianis'm,a casing com prising a ens, a lamp inclosed in. said casing,

The lowest position of they a plurality of translucent disks "ofdifferent colors movahle between said lamp and said phore signallens. togive difierent signal ind cations, a; "plurality of electromagnetscontrolling-said disks, and switch contacts controlling saidelectromagnets and controlled by said sema- 3. In a combination, asernapdioresignaliadapted to give three diiierentindications,

operating mechanism therefor, acasing coma. pris ng a lens, a laminclosed 111 sartl casing,

wire of different colorsthree translucent movable between said lamp andsaid "res eplurality of eleetromagnets controlling said disks, andswitch contacts controlling said A electromagnets and controlled by saidsema phore signal.

' 4. In comb' ation with a semaphore'signal and its 0 crating mechanism,a casing com-z,

prising a ens, a lam inclosed in said casing,

a lurality of trans ucent disks of difierent co ors movable between saidlampiand' said lens to give diiierent indication, e ctromagnets withinsaid casing, operative connections between said magnets and said disksso arranged that when said magnets are deenergized the disk forthedanger indicationautomatically assumes a position in line with said lampand said lens and the other disk or disks automatically assume aposition out of J said line, and switch contacts controlling saidmagnets and, controlled by said fifimilbphore signal.

5. In a railway signal, a lamp, a plurality of disks of different colorsindependentlymovable in front of said lamp to'give.

ent indications, said disks being arranged to move automatically bygravity when 4 re leased by the operating means topositione in which thedisk for the danger; signal is in front of said lamp and the other diskor disks are out of line with. said lamp, and clas tromagnetic operatingmeans for moving said disks out of said positionsa.

6. In a railway si nal, alamp, a plurality of pivoted disks 0' differentcolors independently movable in front offsaid lamp to give difierentindications, the range of moves ment of the disk'for the danger"indicatihh.

extending upwards from a position in front of said lamp and the range ofmovement of the other disk or disks extendin downwards from a same infront of we? of said gravity to their lowest positions, and electromagnetic operating means for raising said disks from said lowestositions.

In witness whereof, I ave hereunto set my hand this fourth. day ofOctober, 1905.

COREY.

\Jv itnesses: I i

EDWARD .FJILLIAJMM, J hlARGr-BEEZL il l/l OOLLEY.

amp and allks being automatically movable by-

